问题详情 来源是,我在Ambari集群里,安装Hue. 给Ambari集群里安装可视化分析利器工具Hue步骤(图文详解 所遇到的这个问题. 然后,去ambari-server的log日志,查看,如下 cat /var/log/ambari-server.log SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointe…